FUNAI DCVR-4809, Service Manual

Page: 23 / 99

1-9-9 1-9-10 H9503BLP
Power Supply Block Diagram
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE.
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
CAUTION !
Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F001) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
AC1001
F1001
T1.6AL/250V
LINE
FILTER
L1003 D1001 - D1004
BRIDGE
RECTIFIER
2
4
Q1001
Q1003
Q1008
7
8
1
2 3
4
IC1001
ERROR
VOLTAGE DET
T001
MAIN CBA POWER SUPPLY CBA
Q1009
(VOLTAGE DETECTION)
HOT CIRCUIT. BE CAREFUL.
20
19
18
17
16
15
14
13
12
11
1 EV+1.5V
2 EV+1.5V
3 EV+1.5V
4 EV+3.3V
5 EV+3.3V
13 P-ON+5V
14 EV+9V
15 EV+9V
17 P-ON+3.3V
19 PWRCON
C-POW-SW
P-ON+5V
P-ON-H
P-DOWN-L
P-ON+44V
AL-30V
AL+12V
AL+12V
TIMER+5V
AL+9V
AL+5V
AL+20.5V/+12V
Q053,Q054
SW+44V
Q1053,
Q1054
SW+12V
Q055
SW+9V
Q056
SW+5V
Q051,Q052
SW+20.5V
P-ON+15V
F2
F1
DVD P-ON+12V
Q057
CL001 CL001 CN050
1 AL+44V
1
3 AL+12V 3
5 AL+5V 5
6 AL+5V 6
8 AL+20.5V 8
CL002 CL002
1 AL-30V
3 AL+1.5V
5 AL+3.3V
9
F1
8
1
3
5
9
8
F2
<FROM PIN 67 OF IC501>
<TO PIN 86 OF IC501>
<FROM PIN 66 OF IC501>
P-OFF-H
<TO PIN 73 OF IC501>
7 P-OFF-H
7
IC1051
+1.5V
REG.
IC1052
+3.3V
REG.
JUNCTION
CBA
CN003
1
3
5
6
8 1
3
5
6
8
10
12
14
18
17
16 10
12
14
18
17
16
-FL
DVD P-ON+3.3V
EV+5V
DVD P-ON+5V
Q1055
CN1051
SW+5V
Q1052
SW+3.3V
Q058
Q059
SW+5V
HOT
COLD